page_title: History of Lithuania
section_title: Lithuania at its peak under Vytautas
hierarchical_section_title: History of Lithuania / Grand Duchy of Lithuania (13th century–1569) / Dynastic union with Poland, Christianization of the state / Lithuania at its peak under Vytautas
context_page_description: The history of Lithuania dates back to settlements founded many thousands of years ago, but the first written record of the name for the country dates back to 1009 AD. Lithuanians, one of the Baltic peoples, later conquered neighboring lands and established the Grand Duchy of Lithuania in the 13th century. The Grand Duchy was a successful and lasting warrior state. It remained fiercely independent and was one of the last areas of Europe to adopt Christianity. A formidable power, it became the largest state in Europe in the 15th century through the conquest of large groups of East Slavs who resided in Ruthenia. In 1385, the Grand Duchy formed a dynastic union with Poland through the Union of Krewo. Later, the Union of Lublin created the Polish–Lithuanian Commonwealth that lasted until 1795, when the last of the Partitions of Poland erased both Lithuania and Poland from the political map. Afterward, the Lithuanians lived under the rule of the Russian Empire until the 20th century.
  On February 16, 1918, Lithuania was re-established as a democratic state.
context_section_description: The Lithuanian Civil War of 1389–1392 involved the Teutonic Knights, the Poles, and the competing factions loyal to Jogaila and Vytautas in Lithuania. Amid ruthless warfare, the grand duchy was ravaged and threatened with collapse. Jogaila decided that the way out was to make amends and recognize the rights of Vytautas, whose original goal, now largely accomplished, was to recover the lands he considered his inheritance. After negotiations, Vytautas ended up gaining far more than that; from 1392 he became practically the ruler of Lithuania, a self-styled "Duke of Lithuania," under a compromise with Jogaila known as the Ostrów Agreement. Technically, he was merely Jogaila's regent with extended authority. Jogaila realized that cooperating with his able cousin was preferable to attempting to govern (and defend) Lithuania directly from Kraków.
  Vytautas had been frustrated by Jogaila's Polish arrangements and rejected the prospect of Lithuania's subordination to Poland. Under Vytautas, a considerable centralization of the state took place, and the Catholicized Lithuanian nobility became increasingly prominent in state politics. The centralization efforts began in 1393–1395, when Vytautas appropriated their provinces from several powerful regional dukes in Ruthenia. Several invasions of Lithuania by the Teutonic Knights occurred between 1392 and 1394, but they were repelled with the help of Polish forces. Afterwards, the Knights abandoned their goal of conquest of Lithuania proper and concentrated on subjugating and keeping Samogitia. In 1395, Wenceslaus IV of Bohemia, the Order's formal superior, prohibited the Knights from raiding Lithuania.
  In 1395, Vytautas conquered Smolensk, and in 1397, he conducted a victorious expedition against a branch of the Golden Horde. Now he felt he could afford independence from Poland and in 1398 refused to pay the tribute due to Queen Jadwiga. Seeking freedom to pursue his internal and Ruthenian goals, Vytautas had to grant the Teutonic Order a large portion of Samogitia in the Treaty of Salynas of 1398. The conquest of Samogitia by the Teutonic Order greatly improved its military position as well as that of the associated Livonian Brothers of the Sword. Vytautas soon pursued attempts to retake the territory, an undertaking for which needed the help of the Polish king.
  During Vytautas' reign, Lithuania reached the peak of its territorial expansion, but his ambitious plans to subjugate all of Ruthenia were thwarted by his disastrous defeat in 1399 at the Battle of the Vorskla River, inflicted by the Golden Horde. Vytautas survived by fleeing the battlefield with a small unit and realized the necessity of a permanent alliance with Poland.
  The original Union of Krewo of 1385 was renewed and redefined on several occasions, but each time with little clarity due to the competing Polish and Lithuanian interests. Fresh arrangements were agreed to in the "unions" of Vilnius (1401), Horodło (1413), Grodno (1432) and Vilnius (1499). In the Union of Vilnius, Jogaila granted Vytautas a lifetime rule over the grand duchy. In return, Jogaila preserved his formal supremacy, and Vytautas promised to "stand faithfully with the Crown and the King." Warfare with the Order resumed. In 1403, Pope Boniface IX banned the Knights from attacking Lithuania, but in the same year Lithuania had to agree to the Peace of Raciąż, which mandated the same conditions as in the Treaty of Salynas.
  Secure in the west, Vytautas turned his attention to the east once again. The campaigns fought between 1401 and 1408 involved Smolensk, Pskov, Moscow and Veliky Novgorod. Smolensk was retained, Pskov and Veliki Novgorod ended up as Lithuanian dependencies, and a lasting territorial division between the Grand Duchy and Moscow was agreed in 1408 in the treaty of Ugra, where a great battle failed to materialize.
  The decisive war with the Teutonic Knights (the Great War) was preceded in 1409 with a Samogitian uprising supported by Vytautas. Ultimately the Lithuanian–Polish alliance was able to defeat the Knights at the Battle of Grunwald 
caption: Battle of Grunwald was one of the largest battles in Medieval Europe and is regarded as one the most important victories in the history of Lithuania
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